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/*=========================================================================
*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef itkExtensionVelocitiesImageFilter_h
#define itkExtensionVelocitiesImageFilter_h
#include "itkLevelSetVelocityNeighborhoodExtractor.h"
#include "itkFastMarchingExtensionImageFilter.h"
#include "itkReinitializeLevelSetImageFilter.h"
namespace itk
{
/** \class ExtensionVelocitiesImageFilter
* \brief Extend velocities smoothly from a particular level set.
*
* ExtensionVelocitiesImageFilter extends velocities smoothly from a particular
* level set.
*
* This class is templated over the image type which represents
* the level set, the type of the velocity and the
* number of velocities to be extended.
*
* This class supports narrowbanding. If the input narrowband is provided,
* the algorithm will only locate the level set within the input narrowband.
* For the output, the extended velocity is only valid for a distance
* of OutputNarrowBandwidth / 2 of either side of the level set of interest.
*
* Implementation of this class is based on Chapter 11 of
* "Level Set Methods and Fast Marching Methods", J.A. Sethian,
* Cambridge Press, Second edition, 1999.
*
* \ingroup LevelSetSegmentation
* \ingroup ITKLevelSets
*/
template<
typename TLevelSet,
typename TAuxValue = float,
unsigned int VAuxDimension = 1
>
class ITK_TEMPLATE_EXPORT ExtensionVelocitiesImageFilter:
public ReinitializeLevelSetImageFilter< TLevelSet >
{
public:
/** Standard class typedefs. */
typedef ExtensionVelocitiesImageFilter Self;
typedef ReinitializeLevelSetImageFilter< TLevelSet > Superclass;
typedef SmartPointer< Self > Pointer;
typedef SmartPointer< const Self > ConstPointer;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Run-time type information (and related methods). */
itkTypeMacro(ExtensionVelocitiesImageFilter, ReinitializeLevelSetImageFilter);
/** The type of level set and the pointer type. */
typedef LevelSetTypeDefault< TLevelSet > LevelSetType;
typedef typename LevelSetType::LevelSetPointer LevelSetPointer;
typedef typename LevelSetType::LevelSetConstPointer LevelSetConstPointer;
typedef typename LevelSetType::PixelType PixelType;
typedef typename LevelSetType::NodeType NodeType;
typedef typename LevelSetType::NodeContainer NodeContainer;
typedef typename LevelSetType::NodeContainerPointer NodeContainerPointer;
/** The dimension of the level set. */
itkStaticConstMacro(SetDimension, unsigned int, LevelSetType::SetDimension);
/** AuxVarType typedef support. */
typedef AuxVarTypeDefault< TAuxValue, VAuxDimension,
itkGetStaticConstMacro(SetDimension) >
AuxVarType;
typedef typename AuxVarType::AuxValueType AuxValueType;
typedef typename AuxVarType::AuxValueVectorType AuxValueVectorType;
typedef typename AuxVarType::AuxValueContainer AuxValueContainer;
typedef typename AuxVarType::AuxImageType AuxImageType;
typedef typename AuxVarType::AuxImagePointer AuxImagePointer;
typedef typename AuxVarType::AuxImageConstPointer AuxImageConstPointer;
/** Number of velocity images to be extended. */
itkStaticConstMacro(AuxDimension, unsigned int, VAuxDimension);
/** Set/Get one of the input velocity images to be extended. */
void SetInputVelocityImage(const AuxImageType *ptr, unsigned int idx = 0);
const AuxImageType * GetInputVelocityImage(unsigned int idx = 0);
/** Get one of the extended velocity images. */
AuxImageType * GetOutputVelocityImage(unsigned int idx = 0);
#ifdef ITK_USE_CONCEPT_CHECKING
// Begin concept checking
itkConceptMacro( AuxValueHasNumericTraitsCheck,
( Concept::HasNumericTraits< TAuxValue > ) );
itkConceptMacro( LevelSetOStreamWritableCheck,
( Concept::OStreamWritable< PixelType > ) );
// End concept checking
#endif
protected:
ExtensionVelocitiesImageFilter();
~ExtensionVelocitiesImageFilter() ITK_OVERRIDE {}
virtual void GenerateDataFull() ITK_OVERRIDE;
virtual void GenerateDataNarrowBand() ITK_OVERRIDE;
virtual void AllocateOutput() ITK_OVERRIDE;
virtual void EnlargeOutputRequestedRegion(DataObject *) ITK_OVERRIDE;
private:
ITK_DISALLOW_COPY_AND_ASSIGN(ExtensionVelocitiesImageFilter);
/** Internal typedefs. */
typedef Image< float, itkGetStaticConstMacro(SetDimension) > SpeedImageType;
typedef LevelSetVelocityNeighborhoodExtractor< TLevelSet, TAuxValue, VAuxDimension > LocatorType;
typedef FastMarchingExtensionImageFilter< TLevelSet, TAuxValue, VAuxDimension,
SpeedImageType > FastMarchingImageFilterType;
typename LocatorType::Pointer m_Locator;
typename FastMarchingImageFilterType::Pointer m_Marcher;
};
} // namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkExtensionVelocitiesImageFilter.hxx"
#endif
#endif
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